PN Racing Mini-Z 2WD Machine Delrin Cut Yellow Formula 8.5x20mm Flanged Wheel F1

New Machine Cut Formula One style Delrin 20mm diameter flanged wheels (same size as regular wheel rims). 

Yellow Color Delrin

Flange outer lip diameter 21.6mm

8.5mm width

Reduce tire movement under load, Help stiffen sidewall and effectively reduce traction roll.